Results 31 to 40 of about 4,033,045 (310)

Too packed to change: side-chain packing and site-specific substitution rates in protein evolution [PDF]

PeerJ, 2015
In protein evolution, due to functional and biophysical constraints, the rates of amino acid substitution differ from site to site. Among the best predictors of site-specific rates are solvent accessibility and packing density.
María Laura Marcos, Julian Echave
doaj   +2 more sources

On the Total Variation Distance of Semi-Markov Chains [PDF]

, 2015
Semi-Markov chains (SMCs) are continuous-time probabilistic transition systems where the residence time on states is governed by generic distributions on the positive real line. This paper shows the tight relation between the total variation distance on SMCs and their model checking problem over linear real-time specifications.
Giorgio Bacci, Giovanni Bacci 0001, Kim Guldstrand Larsen, Radu Mardare   +3 more
openaire   +4 more sources

Examining the Impact of Supply Chain Management Practices on Supply Chain Flexibility During the Covid-19 Pandemic with Supply Chain Risk Management Culture as a Moderator

, 2021
The Covid-19 pandemic has affected supply chains around the world, it has tested the true resilience of businesses in every sector. Emerging economies are not as developed in supply chain management as developed economies and the pandemic severely ...
Elzarka, Sara
core   +1 more source

Energy Supply Chain Optimization Under Demand Variation and Emission Constraints

Chemical Engineering Transactions, 2011
preview not available - see full-text PDF article.
V. Bounovas, A. Papadopoulos, P. Seferlis, P. Voutetakis   +3 more
doaj   +1 more source

Big Data Analytics for controlling supply chain performance

, 2021
Congestion delay produces logistical consequences for the supply chain performance for stored goods. A delayed delivery produces disruption at the next level in the supply chain. To deal with this problem, the study demonstrate the use of Google data, in
Riemer, Torben, Warnke, Phillip
core   +1 more source

Variations on the Fermi-Pasta-Ulam Chain, a Survey [PDF]

, 2021
16 pages, CHAOS Conference, Firenze June ...
openaire   +2 more sources

Pharmacy and neighborhood-level variation in cash price of diabetes medications in the United States.

PLoS ONE, 2023
BackgroundDiabetes medications place significant financial burden on patients but less is known about factors affecting cost variation.ObjectiveTo examine pharmacy and neighborhood factors associated with cost variation for diabetes drugs in the US ...
Haider J Warraich, Hasan K Siddiqi, Diane G Li, Jeroen van Meijgaard, Muthiah Vaduganathan   +4 more
doaj   +1 more source

Mercury biomagnification in an ichthyic food chain of an amazon floodplain lake (Puruzinho Lake): Influence of seasonality and food chain modeling

Ecotoxicology and Environmental Safety, 2021
Mercury (Hg) biomagnification in fish food chains is a relevant subject due to the high fish consumption of the Amazonian population and the high toxicity of this metal.
Lucas Silva Azevedo, Inácio Abreu Pestana, Marcelo Gomes Almeida, Adriely Ferreira da Costa Nery, Wanderley Rodrigues Bastos, Cristina Maria Magalhães Souza   +5 more
doaj   +1 more source

Total variation cutoff in birth-and-death chains [PDF]

Probability Theory and Related Fields, 2008
25 ...
Ding, Jian, Lubetzky, Eyal, Peres, Yuval
openaire   +2 more sources

Anatomical variations of the upper thoracic sympathetic chain: a review

European Journal of Cardio-Thoracic Surgery, 2021
Abstract   Abstract OBJECTIVES The objective of this study is to provide a thorough overview of the anatomical variations of the upper thoracic sympathetic trunk to improve clinical results of upper thoracic sympathectomy.
Jens Vanlommel, Lawrence Van Look, Maxime Peetermans, Leen Uyttebroek, Luc van Nassauw, Paul Van Schil   +5 more
openaire   +3 more sources